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Finding the Fourth Proportional to 404.10, 604.80 and 371.70

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Solution

The fourth proportional to 404.10, 604.80 and 371.70 is: 556.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.10 : 604.80 = 371.70 : x
  2. Step 2: Convert to fraction form
    404.10/604.80 = 371.70/x
  3. Step 3: Cross multiply
    404.10x = 604.80 × 371.70
  4. Step 4: Simplify right side
    404.10x = 224,804.16
  5. Step 5: Solve for x
    x = 224,804.16/404.10
  6. Step 6: Final answer
    x = 556.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.